baber/WOPTO huggingface dataset:
Patent GB-891527-A (GB)
Title: Photographic objective
IPC: G02B9/34
Filed: 1958-10-07
Abstract: 891,527. Photographic objectives. AGFA A.G. Oct. 7, 1958 [Oct. 26, 1957], No. 32021/58. Class 97(1). In a four component photographic objective having an aperture of at least f/2 and of which the two outer are positive single lenses and the two inner are cemented meniscus negative components concave towards a diaphragm therebetween, the sum of the absolute values of the radii of the surfaces bounding the diaphragm space is greater than 0.5 times the focal length f, the effective diameter of the front lens is greater the diameter of a corresponding lens of relative aperture f/1.4, the diameter of the rear lens is not greater than 0.42 f, the thickness of the front lens is between 1.5 and 3 times the thickness of the rear lens, the radius of the cemented surface of the negative component at the front of the diaphragm space is between the radius of the rear surface of that component and twice the sum of the radii of the front and rear surfaces of that component, and the diaphragm space is less than 1.6 times the sum of the thicknesses of the front and rear lenses. This lens is designed so that with a focal length of about 50 mm. the image completely covers the customary miniature picture size 24 X 36 mm. with a pivoted plate shutter, having maximum opening 22.5 mm., between the objective and the film plane. The objective has a maximum back focal length of 0.67 f. Optical data are given for one example of the objective shown.
Patent GB-320686-A (GB)
Abstract: 320,686. Kochs & Co., Ltd., W. E., (F÷ge, H.). July 21, 1928. Heating gases. - Tubular bodies for air or gas heaters are cast in sections in ordinary moulds without the use of cores and are provided with flanges at the ends. The castings a with end flanges g have contact surfaces b with grooves c for cement and are bolted together in pairs by bolts d to form tubes adapted to be surrounded on all sides by hot gases. The flanges g serve to space the tubes when assembled in groups, as shown in Fig. 5. The tubes may be egg-shaped or rectangular in cross-section.
Patent GB-988568-A (GB)
Title: Apparatus for manufacturing stators for dynamo-electric machines
Inventor: HAMM JOHN EDMUND
IPC: H02K15/02
Filed: 1960-09-19
Abstract: 988,568. Making dynamo-electric machines; bending. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept. 14, 1961 [Sept. 19, 1960], No. 32086/60. Headings B3A and B3E. Apparatus for making stators for dynamo-electric machines comprises a a rotary die, a roll having projections which co-operate with apertures in the die to crimp the edge of a metal strip thereby bending it into helical form and a press tool which punches out T-slots from the curved strip at the positions corresponding to the crimpings. A circular die 7 with apertures 10 is rotatably mounted on a base 6 and carries a concentric ring 8 of smaller diameter having circumferential slots 11 in register with the apertures 10. Amoral strip 14 is fixed tangentially against the edge of the ring 8 beneath a guide plate 13. A roll 12 mounted for rotation about a horizontal axis has projections which co-operate with the apertures 10 and slots 11 to crimp the edge of the strip 14 so that it conforms to an arc fitting against the edge of the ring. The die is intermittently rotated to carry the crimped strip beneath press tools 15, 16. Tool 16 co-operates with a flexible strip 17 to partially flatten the crimpings which are then removed by the tool 15 as it cuts out T-shaped slots. Another guide carried on the base 6 feeds the punched curved strip up over the roll 12. When the required length of strip has been stamped, the turns of the helix are compressed axially with the slots of the different convolutions in register to form a stator with T-shaped laminated pole pieces.
Patent GB-604620-A (GB)
Title: A process for the undetachable connection of constructional parts, in particular of profiled parts
IPC: E06B3/976
Filed: 1945-11-28
Abstract: 604,620. Jointing by stamping. KOLLER, E. Nov. 28, 1945, No. 32191. Convention date, Oct. 2. [Class 83 (iv)] Two members, preferably profiled constructional members, are joined by bringing them into overlapping relationship, with the lateral edges of one member fitting into grooves formed by turned-over lateral edges of the other, and by pressing one over-lapping part into preformed depressions in the other. In one form, Fig. 1 and 2, two similar profiled members 1 and 1a meet in a butt joint and are connected by each being fastened to an overlapping connecting plate 3. The members 1 and 1a have turned-over lateral edges embracing the lateral edges of the plate 3 which is formed along its edges with indentations or holes 4 into which the metal of the members 1 and 1a is deformed. In a modification the plate 3 has a single row of holes along the middle of the upper face. The connecting plate 3 is preferably of harder metal than the profiled members 1 and 1a. An angular connecting plate may similarly be joined to each of two abutting mitred portions of, for example, a window frame. Fig. 4 shows a modification in which two members 5 joined by an overlapping angle plate 3 as in Fig. 1, are joined to a Z-iron 7. The parallel portions of the Z- iron are cut away leaving the bridge or web projecting in the form of a tongue which is bent up from the plane of the web and formed with recesses to receive at 8 and 9 the edges of lateral grooves formed on the tops of the members 5. In the form shown in Fig. 6, the flange 11 of a thole-pin 10 is inserted in embracing grooves in a profiled member 8, the edges of the grooves being deformed into depressions 9 and 10 in the flange. A joint may be strengthened by applying an adhesive, preferably an artificial resin to the parts before the deformation of one of the members. The Specification as open to inspection under Sect. 91 comprises also a joint between two substantially flat sections, one having side edges bent at right angles, but not forming grooves. The first mentioned member has its edges recessed at intervals to receive metal displaced from the embracing edges of the second member. This subject-matter does not appear in the Specification as accepted.
Patent GB-640397-A (GB)
Title: Improvements relating to ignition magnetos
Inventor: BAINES JOHN ARCH IBALD
IPC: F02P1/00
Filed: 1947-12-08
Abstract: 640,397. Ignition magnetos. ROTAX, Ltd. Dec. 8, 1947, No. 32287. [Class 35] An inductor type ignition magneto with main components a, e, f and the rotary part n of its distributer form a self-contained unit which is secured at s within a hollow body r, the open end of the body being closed by a cover v carrying the stationary part q of the distributer. This stationary part has a slip-ring p and a plurality of separate contact segments ,y engaged by rotary brushes o. The cables are connected to terminals 2 and are gripped by a rubber pad 3 as described in Specification 640,398.
Patent GB-423965-A (GB)
Title: Improvements in knotters
IPC: B65H69/04
Filed: 1933-11-20
Abstract: 423,965. Knot-tying devices. MILL DEVICES CO., Inc., Durham, North Carolina, U.S.A.-(Assignees of Tatlock, R.; Gastonia, North Carolina, U.S.A.) Nov. 20,1933, No. 32304. Convention date, Dec. 10, 1932. [Class 112] Hand apparatus for tying weavers' knots of the general type described in Specifications 203,368 and 296,272, [both in Class 112], have the pair of threads arranged substantially parallel and means independent of the tying bill for crossing the threads at a single point ready for engagement by the bill for knotting. Before the knotting bill is operated, the threads are crossed as shown in Fig. 9 by the successive operation of two members on the first movement of the trigger. A member 25 pivoted on the plate 2 is operated by the first movement of the trigger by a link 28. The shoulder 27 moves one thread under the other, which is moved over the first thread by the notch 31. Further movement of the trigger causes a link 32 pivoted to a rocker 34 pivoted in turn to the plate 1 to move in the opposite direction of the member 25 to cause a lip 36, notch 37 and shoulder 38 to complete the crossing of the threads as shown in Fig. 9. Further movement of the trigger causes the bill, which is of known form, to rotate and form the knot. The bill has jaws 39, 40, the jaw 40 being actuated during turning by a cam portion 42 to cause it to open and close at the correct times. The bill is rotated on a shaft 45. The shaft carries a pinion 46 turned by a toothed sector 63 on the trigger 4, Fig. 2. When the trigger 4 is moved, pins 57 and 61 move in notches to cause successive operation of the crossing means before operation of the bill.
Patent GB-893320-A (GB)
Title: Purification of uranium ore concentrates
IPC: C22B60/02
Filed: 1960-09-20
Abstract: Uranium ore concentrates which have been obtained by soda leaching of uranium ores are freed from vanadium and molybdenum impurities by treating the concentrate with aqueous nitric acid which selectively dissolves the uranium.  On addition of nitric acid to such a concentrate, the pH initially falls to a minimum value after which it rises and finally falls again; the nitric acid addition should be such that the slurry has a pH between the above-mentioned initial minimum value and 0,5 thereabove. Uranium passes into solution whilst the impurities remain in the undissolved residue.  The uranium-containing solution after separation from the residue may be treated with ammonium hydroxide to precipitate the uranium as ammonium uranate, this step preferably being effected at 25 DEG -70 DEG C. and at a final filtrate pH of 6-13.  The initial concentrate may be obtained by leaching the uranium ore with sodium carbonate at 100 DEG  C. under two atmospheres pressure of oxygen and precipitating the uranium as insoluble sodium uranate by adding sodium hydroxide to a pH of 11 or above; alternatively the carbonate solution may be neutralized with sulphuric acid, boiled to remove carbon dioxide and the uranium precipitated by neutralization with ammonia.  The nitric acid attack on such concentrate is preferably effected at temperatures of 70-105 DEG  C. with nitric acid of 5-36% strength.  The purified uranium values finally obtained are particularly suitable for the production of uranium hexafluoride by gaseous reduction to the dioxide followed by hydrofluorination to the tetrafluoride and fluorination to the desired hexafluoride.
Patent GB-536838-A (GB)
Title: Improvements in the manufacture of hard or highly viscous insulating materials
IPC: C08L91/00
Filed: 1939-12-16
Abstract: 536,838. Insulating compositions. CALLENDER'S CABLE & CONSTRUCTION CO.. Ltd., BECKINSALE, S., and PAGE, H. C. Dec. 16, 1939, No. 32372. [Class 22] In forming insulating compositions by admixing two components one containing free organic acid and the other consisting of a liquid diluent and a base which causes setting by forming a water-insoluble soap, settling of the base in the diluent is prevented by including in the mixture an oil-soluble, water-insoluble soap, either by adding a prepared soap or by incorporating a small quantity of free acid which combines with part of the base. The organic acid may be a fatty acid or the acids contained in rosin or distillation products of resins such as pine or Stockholm tar, resin pitch or rosin oil. The base may be calcium hydroxide or zinc or lead oxide. Bitumens, synthetic resins, or coal tar and petroleum products may be added. Tetrahydrofurfuryl alcohol may be added to improve the plasticity and adhesion to metal of the composition.
Patent GB-1263001-A (GB)
Title: Fluid cooling apparatus and process
Inventor: WOEBCKE HERMAN NICHOLAS
IPC: F28D7/10
Filed: 1969-06-26
Abstract: 1,263,001. Tubular heat exchangers. STONE & WEBSTER ENG. CORP. 26 June, 1969 [27 Feb., 1969], No. 32384/69. Heading F4S. [Also in Division C5] A heat exchanger comprises a housing structure 31 having therein a tubular central passage 30 in which a hot fluid is cooled through the passage wall by surrounding cooling means (e.g. tubes, or as shown, a coolant jacket 40), and a hot fluid inlet tube 38 extending into the passage 30 and having its discharge end formed as a diffuser nozzle 39 with an angle of divergence of from 4 to 10 degrees. The discharge end of the passage 30 may also be formed as a diffuser nozzle e.g. 47, with an angle of divergence of from 4 to 10 degrees. The heat exchanger is intended for the rapid cooling of reaction products from a hydrocarbon cracking process the coolant being water which enters the jacket through an inlet 45 and is discharged as steam through an outlet 46. In the plant described (Fig. 1), the generated steam is collected in a drum (32) and is discharged therefrom through a line (35) for heating or power purposes. Saturated water from the drum is ducted into the chamber 40 of the heat exchanger and constitutes the coolant for the hot fluid therein. As shown, the hot fluid inlet tube 38 is secured at one end only to the housing structure so that its other end may expand freely in the passage 30. Similarly the nozzle member 47 is secured at one end only to the housing structure thus permitting expansion relative to the cooledfluid discharge member 60. This latter may be secured to the fluid outlet line 37 either directly (as shown) or through an expansion joint. A narrow annular passage 56 or 60 is formed around by the housing structure around the free ends of the inlet tube 38 and discharge tube and a steam pressure higher than that of the hot fluid in passage 30, is maintained in these narrow passages to prevent leakage through these zones of the hot fluid. This is said to reduce thermal stresses. The sealing steam is supplied to the passages 56 and 60 from chambers 41, 42 respectively.
Patent GB-392920-A (GB)
Title: Improvements in or relating to recording telegraph systems
IPC: H04L15/30
Filed: 1931-11-24
Abstract: 392,920. Code telegraphy; copying- telegraphy. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, and PARKIN, T. D., The Haven, Mill Lane, Broomfield, near Chelmsford. Nov. 24, 1931, No. 32593. [Class 40 (iii).) In a telegraph receiver in which the electrochemical recorder produces marks and spaces, each received signal is supplied to the recorder as an .interrupted or alternated signal. The frequency of interruption or alternation is preferably from 1000 to 2000 cycles per second. The interruption or alternation may be obtained at the receiver, as by a local heterodyne, or may be obtained by transmitting the signals upon a suitably modulated carrier wave. Preferably the recorder, comprising stylus S, Fig. 3, drum R and paper P, is shunted by a choke RC so that on cessation of a signal the energy in the choke discharges in the opposite direction through the paper and gives a square-ended signal. To prevent the paper being marked on both sides, when the signals are alternated, and consequent wear on the drum R, the stylus S is preferably of steel and the drum R of nickel while the paper carries a solution of potassium thiocyanate, preferably with added spirit. A weight 8, Fig. 4, on a cranked lever 9 presses the stylus S against the paper, the stylus being carried by a rotating shaft 2.
Patent GB-195932-A (GB)
Title: Independent rotation for percussive tools
IPC: E21B6/08
Filed: 1922-11-29
Abstract: 195,932. Ingersoll-Rand Co., (Assignees of Hansen, C. C.). April 7, 1922, [Convention date]. Percussive drills.-Independent rotation for a percussive tool such as a rock drill is afforded by a motor of the geared-vane type mounted so that its casing L is held by longitudinal bolts W against a surface P on the body of the tool. The motor exhaust takes place through ports T into a space S between the motor casing and the body. The tool holder y is rotated from the motor through gearing w, t, and a two part shaft f connected by a sleeve j over interfitting ends g, h to facilitate dismantling.
Patent GB-1069485-A (GB)
Title: Process for producing anthraquinone disperse dyestuffs
IPC: C09B5/24
Filed: 1964-08-11
Abstract: <FORM:1069485/C4-C5/1> Anthraquinone dyestuffs of the formula <FORM:1069485/C4-C5/2> wherein R1 is an alkyl, alkenyl, alkoxyalkyl, cycloalkyl, aryloxyalkyl, aralkyl, aralkyloxyalkyl, hydroxyalkyl, or furfuryl radical, having 2 to 12 carbon atoms, are made by treating 1 - hydroxy - 3 - imino - 4,7 - diamino - 5,6 - phthaloylisoindolenine with an alkylating agent R1-X, wherein X is a halogen atom or an R2-SO2-O- radical, where R2 is an aliphatic or aromatic residue.  The reaction may be effected in a mixture including an acid-binding agent and a basic solvent or a mixture thereof with a neutral solvent.  The starting material (in which R1 above is hydrogen, or its tautomer) may be made by contacting 1,4-diaminoanthraquinone-2,3-dinitrile with fuming sulphuric acid, having an SO3 concentration of 0 to 5%, at a temperature of 20 DEG  to 30 DEG  C.
Patent GB-394873-A (GB)
Title: Improvements in or relating to electric cooking or boiling apparatus
IPC: H05B3/68
Filed: 1932-11-21
Abstract: 394,873. Electric stoves. CUTTING, C. E., Magnet House, Mount Road, Madras, India. Nov. 21, 1932, No. 32853. Convention date, Sept. 27. [Class 39 (iii).] A boiling-stove for use with vessels having a rounded bottom comprises a casing I enclosing a heating element C and having a top formed by an annular plate E surrounding a central disc A and connected there. with in balanced relation so that when a vessel is placed on the disc the latter will sink and the annular plate rises. The switch H controlling the heating element is automatically operated by this movement. A lip B on the disc prevents the heating element from damage by liquid spilt on the disc. An asbestos ring F fitted to the plate E makes a joint with the vessel being heated.
Patent GB-997733-A (GB)
Title: Fastening device for roof cover elements
IPC: F16B35/04
Filed: 1963-08-20
Abstract: 997,733. Wood-screws; bolts. E. BADRE. Aug. 20, 1963 [Aug. 24, 1962; June 10, 1963], No. 32901/63. Heading F2H. A wood-screw, bolt or screw-nail, e.g. for securing a corrugated roof member 1 to a purlin, has a square head 7, a collar 8 and a tapering portion adjacent the shank 6. The . tapering portion may be a simple frusto-cone, Figs. 7, 8 (not shown), with an apex angle greater or less than a right angle. It may be separated from the collar 8 by a cylindrical portion. It may be convex, e.g. part-spherical, as at 12, Fig. 6, or concave, Fig. 5 (not shown), or it may have two frusto-conical portions 9, 10, Fig. 4, and these may be interconnected by a curved surface. The tapered portion is said to seal the hole made for the fastener in the roof member 1 and to deform and crush the hole edge to hold tight the member. The join between the portions 9, 10 may contact the hole edge, Figs. 1, 2 (not shown), or be above a small hole, Fig. 4, or below a large hole, Fig. 3 (not shown). The fastener may be of zincaluminium alloy, brass or mild steel and be plated or coated with cadmium, zinc, paint or synthetic resin.
Patent GB-423536-A (GB)
Title: Anti-dazzle device for lamps
IPC: F21V11/00
Filed: 1933-11-24
Abstract: 423,536. Vehicle &c. lamps. TAYLOR, F., 347, Uppingham Road, Leicester. Nov. 24, 1933, No. 32926. [Class 75 (iv)] An anti-dazzle device for a vehicle or like lamp comprises a number of spaced vertical vanes 2 and a horizontal vane 3 all arranged on a ring 1 or the like, the vane 3 being disposed above the bulb c with its rear edge curved substantially to conform with the curvature of the reflector b. The vanes may be dull, they may be bright so as to act as reflectors, or they may be coated with amber coloured varnish or the like so as to tint the reflected light. The central vertical vanes may extend rearwardly a greater distance than the side vanes, and the tops and bottoms of these central vanes and the rear edges of the side vanes may conform to a surface similar to, but smaller than, that of the reflector. The vane 3 may be provided with a number of slots extending from its front edge to receive the vanes 2 which are provided with top and bottom tongues adapted to pass through slots in the ring 1 and to be bent over and soldered to the ring. The latter may be fitted with clips 4 to engage the lip d of the reflector, or it may be fitted with an indiarubber or like packing ring 5 whereby it may be gripped between the lip and the bezel ring to form a tight and noiseless joint.
Patent GB-790898-A (GB)
Title: Improvements in or relating to bituminous batch plants
IPC: E01C19/10
Filed: 1956-10-29
Abstract: 790,898. Tar macadam machines. BARBER-GREENE CO. Oct. 29, 1956 [Jan. 11, 1956], No. 32940/56. Class 107 A plant for producing batches of bituminous paving material by spraying aggregate with asphalt comprises a plurality of weigh hopper compartments of adjustable volume each delivering a predetermined quantity of one size of aggregate. By this means the aggregate is metered by volume after an initial weighing step is carried out to adjust the volume of the hoppers. The plant is controlled by an electric control circuit having a timer incorporating cam-operated switches, and interlocks are provided to arrest the apparatus if any of the successive weighing, mixing and spraying steps are defective. Provision is made for automatic or manual control and also for varying the dry and wet mixing times. Weight hoppers 11-15 are filled from hoppers 29-32 and shoot 33 for fines and then discharged into a pug mill 46. Asphalt is added to the aggregate from spray line 50 and the finished batch discharged from doors 62, 63. The control circuit is very fully disclosed.